I think its normal with all AMD CPUS . they all have this heat problem . i had Phenom 955BE & temps were as same as yours . its not a big deal just make sure your temps are not going above 62C while under heavy load .
if your hiting anything above 62C then go for GOod after market cooler . At least Cooler Master Hyper 212
by the way check your POWER OPTIONS . it might be on HIGH PERFORMANCE profile . just put back to balanced & temps will go lower
What cooler you have, how many case fans you have, have you cleaned cooler from dust?